Fraunhofer Institute for Physical Measurement Techniques IPMAn increasing number of small satellites are being launched into space, which is made possible by standard off-the-shelf components (COTS). While COTS reduce costs, they also present a new challenge, because some of the components applied are unexpectedly magnetic. This residual magnetization interacts with the Earth's magnetic field, which can disrupt the satellite's orientation or put greater strain on its attitude control system.
As part of the MAGSAT project, we are developing a solution for quick and cost-efficient residual magnetization measurement. Our aim is to fully and vectorially measure nanosatellites in a magnetically shielded room using highly sensitive sensors. This method will allow the nanosatellite’s total magnetization to be precisely determined and its source to be localized. The magnetic measurement will typically take just a few minutes per satellite. The goal is to create a functional measurement setup consisting of hardware and software that can reliably test the typical residual magnetization budget of ≤0.03 A·m².
This novel residual magnetization measuring method will be an effective tool for quality assurance and root cause analysis in nanosatellite manufacturing. It will help nanosatellite operators reduce risks and extend their mission's service life. A portable version of the magnetic field measuring system is conceivable in the future, enabling measurements to be taken directly at the customer's site.
(This technology is based on the magnetic expertise that Fraunhofer IPM gained from the QMag flagship project, as well as on the initial results that were published in Acta Astronautica
Project partners
Fraunhofer IPM
Project term
01/01/2024 – 12/31/2026
Project funding
Fraunhofer-Gesellschaft